Apparatus for pumping liquid and gas.



- L. BJCHERRY. K. APPARATUS Fon wwwa LIQUID AND GAS. APPLICATION FILED MAR. 24,v i916.

1,277,383. Paz-@mm :sept 3, 191s,

UNITED STATES PATENT OFFICE.

LOUIS BOND CHERRY, 0F KANSAS CITY, MISSOURI:

APPARATUS FOB IPUMIING LIQUID AND GAS.

Pumping Liquid and Gas, of which the ol-- lowing is a specification.

This invention relates to certain improvements in apparatus for forcing or pumping liquid and gas; and the objects and nature of the invention will be readily understood l by those skilled in the art Vin the light of the following explanation of the accompanying drawing illustrating 'what l now believe to be the preferred mechanical expression or embodiment of my invention from among other forms, arrangen'ients and constructions within the spirit `and scope thereof. v,

An object of the invention is to overcome certain difficulties heretofore encountered in forcing or compressing liquid and gas into tanks or other receptacles for storing, subsequent treatment, or for the subsequent performance of Work, and also where liquid such as hydrocarbon compounds, and gas such as natural gas, are forced under pressure and in ap roximately certain proportions, into Stils for vaporization of the liquid and mixture withthe as or for other steps Ifollowed in methods o treating" such compounds.

The invention consists in certain novel features'ot. construction and in. combinations and. arrangements as morefully and particularly set forth and` specified hereinafter.'

Referring ings;

Figure 1, diagranunatically illustrating apparatus embodying my invention; the pump piston being shown at the end of its upward or forcing stroke. i y 5 l Fig. 2, is a, vertical section` diagrammati cally illustrating the apparatus of' Eig. 1, showing the iston near the kmpletmn of its downwar or suction stro, e.

In the particular emfbodime `tillustrated, I

show a reciprocating pump r` aving a vertito thel accompanying draw- 'cal cylinder l, supported in any suitable manner and by any suitable means, and pro-V yidedwith a vertically reciprocating piston l Spccicaticn of Letters Patent.

is a verticalasection somewhatjf Patented Sept. 3, 1918.

Application tiled March 24, 1916. Serial No. 86,364.

2, ,actuated on its downward suction stroke and on its upward forcing stroke by any suitable mechanism Well understood by those skilled in the art vand not shown in the accompanying drawings. The lower end of thc cylinder is preferably provided with suitable packn 3, to prevent liquid leakage around vthe iston.'

The inlet and out et of the pump are ar ranged at the upper end of the' cylinder, and in this instance, both communicate with a common duct, or passage 1'opening into the upper end of the cylinder and extending laterally therefrom in an -enlargement or head 5, at the upper end of the cylinder. The suction inlet port 6, opens into the outer end portion of this passage and is controlled aga-inst out or back flowby any suitablev inwardly or upwardly opening check 'valve 7. The outlet or discharge port 8, also opens into the outer `end of this passage and is controlled against down or inflow by' any suitable check valve 9. The suction or inlet porty opens downwardly through the head 5, to receive the main suction pipe 10, which extends to the source of liquid suppl (not shown) and isvprovided at any suite. le (point in its length with any suitable upwar ly opening foot valve l1. The discharge port is here shown alined with the suction port and opening upwardly through the head 5, to receive the pum discharge pipe 17, which conveys the liquid and gas to a single tank,V to separate tanks, or to a still according to the material being handled and the subsequent treatment to which the same is to be subjected or accordin to the work to be performed thereb n the example illustrated, a gas supp y "pipe 12,opens laterally into the main suction pipe above .the foot valve therein and prefere ly adjacent to the suction port of the pump. This pipe 12, extends from any suitable source-o gas supply usually any source of gas or air under light ressurfe.`

under'- port 1.4, and accurately control.l the flow of gas t0 the pump cylinder 'and'fto thereby determine-the volume of gas admittedr'andthe proportion of gas-in the liquid discharged by the pump.

auljustable needle cut-olf valve 13, controlling a very small gasilet this needle valve is arranged to the jet 'operation, the needle valve 13, manipul tain purposes `it4 1s 4controlled lated to open the gas inlet port a crack or slight extent to admit a jet of into pipe 12, behind the check valve l5,I therein After the gas jey inlet has thus been slightly opened, gaa will be iwn inte the main suction pipe il); un ifa ,li ei ,ion stx-olf@ ol' the pump piston and Hic mixture of iiquid and gas will be dra wu into the pump cylinder through snr-.tum inlet (S, and the passage 4.

In the pump cylinder, the liquid will scttlc onto the piston while the gas Will occupy the cylinder space above the liquid, as indicated in an. exaggerated -ma'nner by shade or horizontal hatch lines in. Fig. 2. On the up or forcing stroke of the' piston, the gas and liquidv Will be compressed t0- gether and driven out through passa-ge 4, discharge port 8, and the pump discharge pipel.

The gas supply pipe and its needle valve jet inlet and check valve. are so arranged as to prevent the gas breaking the pump suction and so as not to interfere with the proper maintenance of the liquid priming'of the pump At each suction stroke a small proportion of gas is drawn into the pump cylinder fwith the liquid and at each orcing stroke, the gas is driven from the pumpI with the 1iquid, and the proportion of gas admitted can be accurately contgolled by the needle valve. l

^ The body of liquid in the pump cylinder is interposed between the gas and the Ipiston, and hence t-hepiston is sealed 'or pac ed by the liquid against various pump valves are also sealed by the liquid against gas leakage, thereby reduc` ing waste to the minimum. The liquid'4 absorbs the heat generated by compression of the gas, and hence it is not necessary7 to provide Water. .jackets and other coo' means, and in other respects', economy is thereby paratus.

Where handling 'certain "liquids for' cerdesirable'for the pumpI to deliver the liquid at as high. a 4temperature as possible, and hence advantages are attained by thus compressing the gas and liquid in the one cylinder to enable the' .the needle valve.

leakage of gas, and the attained in the operqtion of the ap: i

.con actions leading to the compress liquid and gas in tanks or other receptacles to employment of pressem, and speeds.

l have used apparatus in accordance with this invention, lo great advantage in .foroing liquid hydrocarlnm compounds and natural gas into stills wherein the' liquid is vaporized and the gas united therewith, and wherein it was necessary to compress the liquid and gas to overcome the pressure in the still. and wherein it was desirablc.to maintain a surplus proportion of gas in the liquid and .ir-.s mixture.

The in' mien lio ever, can be utilized for other purpose f 1ere it is desirablto draw gas anu' liqn i nn different sources and compress theirf .n the same or separate receptacles` The invention can be utilized to great advantage'insupplying the necessary air pressure for elevating Water in so-called suburban Aor house water supply systems, inasmuch as 'the one pump Will' not only force a higlr degree without the multistage pumps and com- .'zt comparatively slow piston the water into the pressure tank but will also simultaneously force the necessary air into the tank for maintaining the necessary pressure for forcing 'the water throughoutv the system.

The pump can be employed for elevating liquid only by closing the gas jet inlet by This as jet inlet controlled by the needle va'e constitutes an important feature ofmy apparatus7 Whereby the operator can manipulate the valve to secure the largest possible flow of gas into the 'pump consistent with proper operation of the pump Where a large percentage of gas is desired in the mixture forced through the pump discharge, ipe, or whereby the percentage of gas in 't e mixturedischargcd y Athe pump can be out down to the minimum wheeitis necessary to pump only a small volume of s.'

I herein emp o the term gas inv a broad sense to lnc 11de air and vapor.

' It is evident that Various changes, modilicationsand variations might be -resorted to without departing from the spirit and scope. of my invention, and hence I do not Wish to limit my invention to the exact disclosure hereof.

an "upri t cylin er, a verticallymovab e gas and liquid suction;-

u dei; .manually-control ed means conadmitted, and

Cylm l trollingthe quantity of gas 1. A liqluid and, as forcing pump havin i,` v

125 piston V,or compressing: liquid'. and gas li'n-j per end of'said f a gus' und liquid dscluuge cfu'mucltiuu 'trmu the upper und of Suid cyiiluler 50 urruuggud tu nuiiutuiu the liquid priming ui thu pump with respect tu Suid gufi :nud liquid suction. cuuimifliiuus.

E3, Apiimrutuu 'for Hiuiultupuouuly forcing hul'h liquid und gus cumprisiug u single, pump luiviug u muuivimfd liquid und guia dischurgu pipu, und uujjmrutu liquid und gus Surtiou runuwifiuus lezuliiig into Suid pmup, Suid luut uwntiunud cunuctinn being pruvided with chuck rulvleu und said gus Cou nucliuu liuring uy gus supply jut upuuiug :lud u uuu'iuully coi'i'lrolluf'l zuuulle vulvu curr trui l i uit' :ui id upun ing.

.M :puru'luu ifm: simultuiuinusiy farming burla .liquid :lud gus rfrfiupmiuiug u iiquui furuii'igg; pump liuriug u ruuallii'iud liquid und .gus :lim-hariw und u liquid suugtiuu nounouA tiuu u lfuit suive und pruridiu'l with :i 'lui' l giu: Supply thvrvinlu.. und. liufizig trullcil gus inici; pur

4. A .liquid forcing` pui'up i'uiving u diurluirggc: Outlet zuid pruvidc'lr with u cylinder .so urruugiul. that .liquid und giu; will sepurute therriu, und. guia aud .liquid suction con nurtiouu lu uuid pump, the gufi sLu-iim'i connvmiun living provided with u, neri-,die vulve controllati gus inlet port.

Appurutus for forcing u mixture ol liquid und gnu Comprising u pump hui/ing u Cylinder, und u piston mui/:1blu down urdly u umidlu vulve coul ou thu suction stroke und upwardly un its:

forcing; sl'rule 'so that liquid aud u; wili separat@ iu the liiyliudvr wiizl'i the j the pi up l'uiring u liquid. :eue-- tiuu in iuuinl'fuiuud prin'nfd hy tlu, liquid di Kfuiuruiiuu ui? the. pump, uud ulsu liuriug u lull i'ulri fur i und u wlw un trulliug thu uuuue, Hiilisiz-iutiailly :is luucriluul.

(. Apparatus :for Simuituueuuuly fure'iug i both liquid nud gnu cuuqjrisiug u single upright pump lun/ing u combined liquid und mzuugctiuu ripening gus discharge und u vm'uuiued liquid und ms suction ,uxuusul'iuu with u giu; supply commotion opening iut() uuiil'sliutil'm uonuuciiem, s: id Huutiuu cunluictiuli lining so urrfmged :is to nuiintuiu Vtluuuiu the. liquid priming of ilu: pump, iuilisluntiully us de scri hud.

7, Jlppum'fuu lur iuuuultuuuuuly forcing huil! liquid und giu; rfuuprsiug u. single upright liquid. forring pump haring u cmuliinud liquid und uns disrluirgv, und separata liquid und gus supply'cunnvvliuuu 'for thu pump lending tu thel upper und thvrol, und su arranged us tu nmiul'uiu rhuroin the liquid. priming nl' the pump7 suhul'uuli'ully us du Scriliud.

.Llppuruluss Al'ur furcnpy u uiixturv uli liquid nud zum ruuipriuirufy u, ryliiiulnr und i-vi-iprurutiiqg pistou, Suid ryliudur having u .'ulrriv ultuliu for l'lw mixture. und ulm luwii" if :i Siu-tiuu iulul'` und :i gus supply jet inlet @qmsiad tu the suuliuu ul thu cylinder und piston und u chuck vulve protecting Suill` -jut iuie: 'from the. cruupressiun oi.' the cylilr der nud pistou. y E). pump for forcing u mixture of liquid und gus, uuid pump having ai vulvcd oll'tuke fur thu iuixlur, und also having u check will ml y-fu liuu ink-it for the 1uixtl,|r0ssuid iulri; lun-'ing suction communication with u. liquid supply und with u check yulvud gus supply, Suid inlet, liquid supply und gus supply being so urrunged with ruspect to tlm pump us tu lue priuuid bythe liquid primiiug ult the puuqr l l0., A pump lur fui'riuu :1 u iixturu ult liquid und gij. u, .uuid pump liuringii gus sul pl): uulivimri u ilu pump suction, uuucljustuhh uimllr vulve viuurulliug Huid uupplyu i-lurli, ruia'u pruiiriiugif; uid uupply' lflulu llu pump mnipruusiuufSuid pump also luiviuu u suction iulvt, und u liquid und ,uns disfciiurgg.

Signed 

